The dynamic excitation caused by the time-varying characteristics of meshing stiffness during gear meshing is called stiffness dynamic excitation of gear meshing, also known as stiffness excitation. This kind of excitation is one of the most important and basic dynamic excitation in gear transmission system. This section will explain...
Taking straight teeth as an example, the basic concept and properties of gear meshing stiffness are explained. Tooth meshing stiffness refers to the comprehensive effect of tooth pairs participating in gear meshing in the gear meshing area (segments A-D in Figure 1), which is mainly related to the elastic...
Digital gear tooth surface design, analysis and manufacturing is the trend of gear development. Through digital means, gear production efficiency can be improved and quality control is convenient. Dong Xuezhu proposed a new method to generate a corresponding network on both sides of the gear tooth. The shape of...
The meshing performance analysis and tooth surface design of cycloid hypoid gear first need to calculate the geometric parameters and machining parameters of hypoid gear pair, and then the tooth surface modeling and subsequent analysis and design can be carried out. Firstly, the calculation method of geometric parameters of...
Single circular arc tooth profile arc tooth profile a single tooth is shown in Figure a. its tooth profile curve is an arc, and the tooth line of the gear is an arc, and the section at the center of the tooth width is symmetrical. There are only two...
The gear meshing principle, namely the conjugate surface principle, is the basic method to study the contact transmission of two conjugate surfaces. Different from the meshing principle of other types of gear transmission, the contact surface of spiral bevel gear transmission is local conjugate, strictly speaking, it is point...
Pressure nephogram during helical gear meshing: It can be seen from figures 1 to 4 that when two helical gears mesh, they can be summarized into two modes, which are carried out circularly, that is, the meshing form of single tooth pair and double tooth pair. The two forms...
Scholars at home and abroad have also done a lot of research and Analysis on the meshing impact of gear teeth. Yaowenxi and others have studied the spur gear meshing impulse excitation by using the analytical method, and given the relationship between the tooth error, tooth deformation, tooth surface...
The variation law between the dynamic contact equivalent stress and time of helical gear is shown in the figure: It can be seen from the figure that the contact equivalent stress of the helical gear is small when the speed slowly rises at the beginning, and the operation is...
In the process of helical gear meshing, the humidity of helical gear surface is composed of ambient temperature, helical gear body temperature and instantaneous temperature of meshing contact area. At high speed and load, the instantaneous temperature rise at the meshing point is very high. Gou Xiangfeng et al....